Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of Brazil
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.rsma.2020.101218 http://hdl.handle.net/11449/200167 |
Resumo: | The population structure, sex ratio, size at the onset of sexual maturity, growth rates, and longevity of Farfantepenaeus subtilis and Litopenaeus schmitti were studied in the State of Sergipe, Brazil. The distribution pattern of juveniles and reproductive females was compared to investigate whether habitat partitioning takes place between these species. The sampling occurred monthly, from September/2013 to August/2014, in nine stations of three transects (5 m, 15 m, and 30 m deep) using a shrimp fishing boat. In total, 1076 F. subtilis and 499 L. schmitti individuals were captured. The sex ratio of F. subtilis was skewed toward females, while L. schmitti had a 1:1 sex ratio. Females of both species were larger than the males. The size at the onset of sexual maturity of F. subtilis females was large than that of males, while the opposite occurred in L. schmitti. The estimated growth parameters of F. subtilis males were: CL∞=33.24 mm, k = 2.30/year and longevity = 2.0 years. For the females, they were: CL∞=42.49 mm, k = 2.15/year and longevity = 2.12 years. The growth parameters of L. schmitti males were: CL∞=32.48 mm, k = 2.41/year and longevity = 1.91 years. For the females, they were: CL∞=38.78 mm, k = 2.01/year and longevity = 2.29 years. The distribution patterns of juveniles and reproductive females differed between species. F. subtilis females predominated in deeper waters. Juveniles of L. schmitti were aggregated in shallow waters (5 m), while F. subtilis aggregated at 15 m. Considering that (1) the relationship between the environmental factors and the abundance of juveniles and females was not evident, and (2) the reproductive and recruitment periods of these species are synchronized, our results suggest that habitat partitioning takes place to decrease the interspecific competition. |
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Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of BrazilLongevityMaturityPenaeoideaSex ratioSpatial distributionvon BertalanffyThe population structure, sex ratio, size at the onset of sexual maturity, growth rates, and longevity of Farfantepenaeus subtilis and Litopenaeus schmitti were studied in the State of Sergipe, Brazil. The distribution pattern of juveniles and reproductive females was compared to investigate whether habitat partitioning takes place between these species. The sampling occurred monthly, from September/2013 to August/2014, in nine stations of three transects (5 m, 15 m, and 30 m deep) using a shrimp fishing boat. In total, 1076 F. subtilis and 499 L. schmitti individuals were captured. The sex ratio of F. subtilis was skewed toward females, while L. schmitti had a 1:1 sex ratio. Females of both species were larger than the males. The size at the onset of sexual maturity of F. subtilis females was large than that of males, while the opposite occurred in L. schmitti. The estimated growth parameters of F. subtilis males were: CL∞=33.24 mm, k = 2.30/year and longevity = 2.0 years. For the females, they were: CL∞=42.49 mm, k = 2.15/year and longevity = 2.12 years. The growth parameters of L. schmitti males were: CL∞=32.48 mm, k = 2.41/year and longevity = 1.91 years. For the females, they were: CL∞=38.78 mm, k = 2.01/year and longevity = 2.29 years. The distribution patterns of juveniles and reproductive females differed between species. F. subtilis females predominated in deeper waters. Juveniles of L. schmitti were aggregated in shallow waters (5 m), while F. subtilis aggregated at 15 m. Considering that (1) the relationship between the environmental factors and the abundance of juveniles and females was not evident, and (2) the reproductive and recruitment periods of these species are synchronized, our results suggest that habitat partitioning takes place to decrease the interspecific competition.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Laboratory of Carcinology Department of Biology Federal University of Sergipe, Av. Marechal Rondon, s/n∘, Rosa ElzeLaboratory of Biology of Marine and Freshwater Shrimps (LABCAM) Department of Biological Sciences Q1 Faculty of Sciences São Paulo State University (UNESP) Bauru São PauloLaboratory of Biology of Marine and Freshwater Shrimps (LABCAM) Department of Biological Sciences Q1 Faculty of Sciences São Paulo State University (UNESP) Bauru São PauloCNPq: #482802/2012-0CNPq: 305919/2014-8Universidade Federal de Sergipe (UFS)Universidade Estadual Paulista (Unesp)de Carvalho Santos, Rafael [UNESP]Perroca, Júlia Fernandes [UNESP]Costa, Rogério Caetano [UNESP]Hirose, Gustavo Luis2020-12-12T01:59:25Z2020-12-12T01:59:25Z2020-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.rsma.2020.101218Regional Studies in Marine Science, v. 35.2352-4855http://hdl.handle.net/11449/20016710.1016/j.rsma.2020.1012182-s2.0-85081656052Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRegional Studies in Marine Scienceinfo:eu-repo/semantics/openAccess2024-04-23T15:24:02Zoai:repositorio.unesp.br:11449/200167Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-23T15:24:02Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of Brazil |
title |
Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of Brazil |
spellingShingle |
Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of Brazil de Carvalho Santos, Rafael [UNESP] Longevity Maturity Penaeoidea Sex ratio Spatial distribution von Bertalanffy |
title_short |
Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of Brazil |
title_full |
Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of Brazil |
title_fullStr |
Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of Brazil |
title_full_unstemmed |
Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of Brazil |
title_sort |
Population dynamics of Farfantepenaeus subtilis (Pérez-Farfante, 1967) and Litopenaeus schmitti (Burkenroad, 1936) (Decapoda: Penaeidae) and evidence of habitat partitioning in the northeast of Brazil |
author |
de Carvalho Santos, Rafael [UNESP] |
author_facet |
de Carvalho Santos, Rafael [UNESP] Perroca, Júlia Fernandes [UNESP] Costa, Rogério Caetano [UNESP] Hirose, Gustavo Luis |
author_role |
author |
author2 |
Perroca, Júlia Fernandes [UNESP] Costa, Rogério Caetano [UNESP] Hirose, Gustavo Luis |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Sergipe (UFS) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Carvalho Santos, Rafael [UNESP] Perroca, Júlia Fernandes [UNESP] Costa, Rogério Caetano [UNESP] Hirose, Gustavo Luis |
dc.subject.por.fl_str_mv |
Longevity Maturity Penaeoidea Sex ratio Spatial distribution von Bertalanffy |
topic |
Longevity Maturity Penaeoidea Sex ratio Spatial distribution von Bertalanffy |
description |
The population structure, sex ratio, size at the onset of sexual maturity, growth rates, and longevity of Farfantepenaeus subtilis and Litopenaeus schmitti were studied in the State of Sergipe, Brazil. The distribution pattern of juveniles and reproductive females was compared to investigate whether habitat partitioning takes place between these species. The sampling occurred monthly, from September/2013 to August/2014, in nine stations of three transects (5 m, 15 m, and 30 m deep) using a shrimp fishing boat. In total, 1076 F. subtilis and 499 L. schmitti individuals were captured. The sex ratio of F. subtilis was skewed toward females, while L. schmitti had a 1:1 sex ratio. Females of both species were larger than the males. The size at the onset of sexual maturity of F. subtilis females was large than that of males, while the opposite occurred in L. schmitti. The estimated growth parameters of F. subtilis males were: CL∞=33.24 mm, k = 2.30/year and longevity = 2.0 years. For the females, they were: CL∞=42.49 mm, k = 2.15/year and longevity = 2.12 years. The growth parameters of L. schmitti males were: CL∞=32.48 mm, k = 2.41/year and longevity = 1.91 years. For the females, they were: CL∞=38.78 mm, k = 2.01/year and longevity = 2.29 years. The distribution patterns of juveniles and reproductive females differed between species. F. subtilis females predominated in deeper waters. Juveniles of L. schmitti were aggregated in shallow waters (5 m), while F. subtilis aggregated at 15 m. Considering that (1) the relationship between the environmental factors and the abundance of juveniles and females was not evident, and (2) the reproductive and recruitment periods of these species are synchronized, our results suggest that habitat partitioning takes place to decrease the interspecific competition. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:59:25Z 2020-12-12T01:59:25Z 2020-03-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.rsma.2020.101218 Regional Studies in Marine Science, v. 35. 2352-4855 http://hdl.handle.net/11449/200167 10.1016/j.rsma.2020.101218 2-s2.0-85081656052 |
url |
http://dx.doi.org/10.1016/j.rsma.2020.101218 http://hdl.handle.net/11449/200167 |
identifier_str_mv |
Regional Studies in Marine Science, v. 35. 2352-4855 10.1016/j.rsma.2020.101218 2-s2.0-85081656052 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Regional Studies in Marine Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965744556933120 |